61% (2012)

66% (1976)

63% (1974)

50% (1977)

63% (1975)

64% (1968)

21% (1979)

65% (1971)

52% (1996)

67% (1973)

62% (1977)

30% (1973)

60% (1973)

58% (1973)

0% (1990)

0% (1979)

64% (2005)

67% (1975)

45% (2005)

60% (1978)